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MAGNETIC CIRCUIT STRUCTURE meetings

Foreign code F110002845
File No. S2009-0616-C0
Posted date May 2, 2011
Country WIPO
International application number 2010JP055653
International publication number WO 2010/116921
Date of international filing Mar 30, 2010
Date of international publication Oct 14, 2010
Priority data
  • P2009-092936 (Apr 7, 2009) JP
Title MAGNETIC CIRCUIT STRUCTURE meetings
Abstract Disclosed is a magnetic circuit structure for a motor or the like, said magnetic circuit structure provided with a rotor, which has rotor-side magnetic poles formed on the outer surface thereof, and a stator, which has stator magnetic poles formed on the inner surface thereof. An air gap is formed, where the rotor magnetic poles and the stator magnetic poles face each other, between the outer surfaces of the rotor magnetic poles and the inner surfaces of the stator magnetic poles. At least one pair of opposing indentation/protrusions is formed on the outer surfaces of the rotor magnetic poles and the inner surfaces of the stator magnetic poles, said indentation and protrusion facing each other along the axis of rotation. Each indentation/protrusion includes two or three steps in the radial direction. This increases the magnetic flux through the air gap, thereby increasing torque.
Scope of claims (In Japanese)
【請求項1】 回転軸を中心に回転可能に支持され複数の回転子側磁極が外周面に形成された回転子と、前記回転子側磁極の外側を囲むように配置され複数の固定子側磁極が内周面に形成された固定子とを備え、回転子側磁極と固定子側磁極とが対向する位置で回転子側磁極の外周面と固定子側磁極の内周面との間にエアギャップが形成される構造を有する磁気回路構造体であって、
 前記エアギャップは回転子側磁極の外周面と前記固定子側磁極の内周面とが、回転軸の軸線方向に沿って互いに対向する凹凸が少なくとも1つ形成されるとともに、それぞれの凹凸単位には回転軸半径方向に2段または3段の段差が含まれることを特徴とする磁気回路構造体。

【請求項2】 回転軸を中心に回転可能に支持され複数の回転子側磁極が内周面に形成された回転子と、前記回転子側磁極の内側に配置され複数の固定子側磁極が外周面に形成された固定子とを備え、回転子側磁極と固定子側磁極とが対向する位置で回転子側磁極の内周面と固定子側磁極の外周面との間にエアギャップが形成される構造を有する磁気回路構造体であって、
 前記エアギャップは回転子側磁極の内周面と前記固定子側磁極の外周面とが、回転軸の軸線方向に沿って互いに対向する凹凸が少なくとも1つ形成されるとともに、それぞれの凹凸単位には回転軸半径方向に2段または3段の段差が含まれることを特徴とする磁気回路構造体。

【請求項3】 回転軸半径方向の段差が2段のときは前記回転子と前記固定子とはそれぞれ3種類の異なる形状の積層鋼板で形成され、回転軸半径方向の段差が3段のときは前記回転子と前記固定子とはそれぞれ4種類の異なる形状の積層鋼板で形成される請求項1または請求項2のいずれかに記載の磁気回路構造体。
  • Applicant
  • ※All designated countries except for US in the data before July 2012
  • OSAKA PREFECTURE UNIVERSITY PUBLIC CORPORATION
  • Inventor
  • SANADA, Masayuki
  • MORIMOTO, Shigeo
IPC(International Patent Classification)
Specified countries AE(UTILITY MODEL),AG,AL(UTILITY MODEL),AM(PROVISIONAL PATENT)(UTILITY MODEL),AO(UTILITY MODEL),AT(UTILITY MODEL),AU,AZ(UTILITY MODEL),BA,BB,BG(UTILITY MODEL),BH(UTILITY MODEL),BR(UTILITY MODEL),BW,BY(UTILITY MODEL),BZ(UTILITY MODEL),CA,CH,CL(UTILITY MODEL),CN(UTILITY MODEL),CO(UTILITY MODEL),CR(UTILITY MODEL),CU(INVENTOR'S CERTIFICATE),CZ(UTILITY MODEL),DE(UTILITY MODEL),DK(UTILITY MODEL),DM,DO(UTILITY MODEL),DZ,EC(UTILITY MODEL),EE(UTILITY MODEL),EG(UTILITY MODEL),ES(UTILITY MODEL),FI(UTILITY MODEL),GB,GD,GE(UTILITY MODEL),GH(UTILITY CERTIFICATE),GM,GT(UTILITY MODEL),HN(UTILITY MODEL),HR(CONSENSUAL PATENT),HU(UTILITY MODEL),ID,IL,IN,IS,JP(UTILITY MODEL),KE(UTILITY MODEL),KG(UTILITY MODEL),KM,KN,KP(INVENTOR'S CERTIFICATE)(UTILITY MODEL),KR(UTILITY MODEL),KZ(PROVISIONAL PATENT)(UTILITY MODEL),LA,LC,LK,LR,LS(UTILITY MODEL),LT,LU,LY,MA,MD(UTILITY MODEL),ME,MG,MK,MN,MW,MX(UTILITY MODEL),MY(UTILITY-INNOVATION),MZ(UTILITY MODEL),NA,NG,NI(UTILITY MODEL),NO,NZ,OM(UTILITY MODEL),PE(UTILITY MODEL),PG,PH(UTILITY MODEL),PL(UTILITY MODEL),PT(UTILITY MODEL),RO,RS(PETTY PATENT),RU(UTILITY MODEL),SC,SD,SE,SG,SK(UTILITY MODEL),SL(UTILITY MODEL),SM,ST,SV(UTILITY MODEL),SY,TH(PETTY PATENT),TJ(UTILITY MODEL),TM(PROVISIONAL PATENT),TN,TR(UTILITY MODEL),TT(UTILITY CERTIFICATE),TZ,UA(UTILITY MODEL),UG(UTILITY CERTIFICATE),US,UZ(UTILITY MODEL),VC(UTILITY CERTIFICATE),VN(PATENT FOR UTILITY SOLUTION),ZA,ZM,ZW,EP(AT,BE,BG,CH,CY,CZ,DE,DK,EE,ES,FI,FR,GB,GR,HR,HU,IE,IS,IT,LT,LU,LV,MC,MK,MT,NL,NO,PL,PT,RO,SE,SI,SK,SM,TR),OA(BF(UTILITY MODEL),BJ(UTILITY MODEL),CF(UTILITY MODEL),CG(UTILITY MODEL),CI(UTILITY MODEL),CM(UTILITY MODEL),GA(UTILITY MODEL),GN(UTILITY MODEL),GQ(UTILITY MODEL),GW(UTILITY MODEL),ML(UTILITY MODEL),MR(UTILITY MODEL),NE(UTILITY MODEL),SN(UTILITY MODEL),TD(UTILITY MODEL),TG(UTILITY MODEL)),AP(BW(UTILITY MODEL),GH(UTILITY MODEL),GM(UTILITY MODEL),KE(UTILITY MODEL),LR(UTILITY MODEL),LS(UTILITY MODEL),MW(UTILITY MODEL),MZ(UTILITY MODEL),NA(UTILITY MODEL),SD(UTILITY MODEL),SL(UTILITY MODEL),SZ(UTILITY MODEL),TZ(UTILITY MODEL),UG(UTILITY MODEL),ZM(UTILITY MODEL),ZW(UTILITY MODEL)),EA(AM,AZ,BY,KG,KZ,MD,RU,TJ,TM)

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